bpo-33855: Still more edits and minimal tests for IDLE (GH-7784)

Part 3 of 3, continuing PR #7689. This covers 14 idlelib modules and their tests,
rpc to zoomheight except for run (already done) and tooltip (being done separately).

1 files changed, 41 insertions, 0 deletions

diff --git a/Lib/idlelib/idle_test/test_statusbar.py b/Lib/idlelib/idle_test/test_statusbar.py
new file mode 100644
index 0000000..203a57d
--- /dev/null
+++ b/Lib/idlelib/idle_test/test_statusbar.py
@@ -0,0 +1,41 @@
+"Test statusbar, coverage 100%."
+
+from idlelib import statusbar
+import unittest
+from test.support import requires
+from tkinter import Tk
+
+
+class Test(unittest.TestCase):
+
+    @classmethod
+    def setUpClass(cls):
+        requires('gui')
+        cls.root = Tk()
+        cls.root.withdraw()
+
+    @classmethod
+    def tearDownClass(cls):
+        cls.root.update_idletasks()
+        cls.root.destroy()
+        del cls.root
+
+    def test_init(self):
+        bar = statusbar.MultiStatusBar(self.root)
+        self.assertEqual(bar.labels, {})
+
+    def test_set_label(self):
+        bar = statusbar.MultiStatusBar(self.root)
+        bar.set_label('left', text='sometext', width=10)
+        self.assertIn('left', bar.labels)
+        left = bar.labels['left']
+        self.assertEqual(left['text'], 'sometext')
+        self.assertEqual(left['width'], 10)
+        bar.set_label('left', text='revised text')
+        self.assertEqual(left['text'], 'revised text')
+        bar.set_label('right', text='correct text')
+        self.assertEqual(bar.labels['right']['text'], 'correct text')
+
+
+if __name__ == '__main__':
+    unittest.main(verbosity=2)